There are links to Shunty and a number of other projects in Zen Mod's signature line. Shunty is part of the Pumpkin project. Just find a ZM post. He's one of those guys that hangs out in the Pass Pub a lot, should be easy to find him there.

Thanks for those links. Shunty looks complex. Getting lazy. Just want to listen ASAP. Using Salas reg on one amp. Very good. Second Salas, not enough space in new amp.
With regard to bias board well if I run the front end from the main power supply that is connected to the bias board anyway so it will be drawing current from the same supply. Just happens that the way I have arranged things the bias board is right next to the front end, just a short wire away.
Chris

Thanks Istmee. Is anyone running the bias board from a separate supply to the main power supply? Perhaps running the front end and the bias board together on a separate regulated supply. Didn't occur to me that one should. Is there any advantage?

On a different issue when passing mains cables through holes in a metal casing. Should all cables come and go through the same hole to prevent turning the chassis into a transformer core?
Chris

When I said everything from one PSU, I meant front end, bias board and output; if your going to use two supplies, the bias board must be powered from the output stage supply.

Quote:

Originally Posted by Backbones

On a different issue when passing mains cables through holes in a metal casing. Should all cables come and go through the same hole to prevent turning the chassis into a transformer core?
Chris

Are you talking about multiple mains cables?

A single cable - the live and neutral leads must pass through the same hole.

If passing a cable in then out (as a loop through) to power other equipment (preamp?) then no, a separate hole is ok (as long as the live and neutral pass through the hole); earth is unimportant in this respect as there is no current flow.

I am putting two 200VA transformers into one box each with a 230V primary. I would like both primarys to be joined in parallel and to use the CL60 thermistor to delay the current inrush. Do I just use one in series between the mains input and one of the primary inputs?
Chris